Canon Mb2140 Service Tool 2021 -

The Service Tool is intended for professional use. If the printer's (often caused by using an incorrect or counterfeit tool version), the only way to reset the counter is to physically replace or re-flash the printer's EEPROM chips.

While the software reset fixes the software lockout, it doesn't physically empty the ink. If you reset the counter multiple times without eventually replacing the felt pads inside, you risk ink leaking onto your desk or damaging the printer’s internal electronics. canon mb2140 service tool 2021

Obtain the tool from a reputable source (preferably Canon's official website or authorized distributors) and follow the installation instructions. The Service Tool is intended for professional use